Hearing aid



1. Hearing aid

Fig. 1.1 is a perspective view of the hearing aid embodying the design;

Fig. 1.2 is a top view thereof;

Fig. 1.3 is a bottom view thereof;

Fig. 1.4 is a right view thereof;

Fig. 1.5 is a left side view thereof;

Fig. 1.6 is a front view thereof; and,

Fig. 1.7 is a rear view thereof.

The broken lines represent unclaimed environmental elements and form nopart of the claim.

CLAIM The ornamental design for a hearing aid, as shown and described.